Improvement in cotton-gins



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COTTON-GIN. No.185,452. 1 Patented Dec. 19, 1876.

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- COTTON-GIN. No. 185,452. Patented Dec.19, 1876.

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UNITED STATES PATENT OFFICE.

ENOOH OSGOOD, OF BOSTON, MASSACHUSETTS.

IMPROVEMENT IN COTTON-GINS.

Specification forming part of Letters Patent No. 185,452, dated December19, 1876; application filed November 17, 1876.

To all whom it may concern:

Be it known that I, ENOOH Oseoon, of Boston, county of Suffolk and Stateof Massachusetts, have invented a new and useful Improvement inCotton-Grins, which improvement is fully set forth in the followingspecification, reference being had to the accompanying drawings, inwhich- Fignre l is a perspective view of gin. Fig. 2 is a section viewof gin. Fig. 3 is a plan view of band seed-clearer. Fig. 4 is aperspective of elastic roller, showing mode of winding.

My improvement relates to the construction and arrangement of a serratedmetallic band in front of an elastic roller and concave bar, by theoperation of which the seeds are severed from the cotton-fiber, ashereinafter more fully described, the same being an iinprov ement on agin described in Letters Patent granted to me August 13, 1872, numbered130,438.

The elastic roller is represented by the letter A, the concave bar bythe letter B, both of which are fully described in my patent abovenamed, except as hereinafter stated. The elastic roller A is formed uponan iron shaft, and consists of a series of disks of vulcanized rubberand canvas wound around the shaft radially, pressed compactly togetherand vulcanized. Pulverized pumi-e-stoue may be mixed with the rubberpaste before the same is vulcanized. The surface of the roller is turnedtrue and straight, and pro- .vided with a series of longitudinal groovesor depressions about half an inch apart, and about the tenth of an inchdeep, and about the same or a little greater in Width. The concave bar Bconsists of a strong bar of steel, having a concave surface of about aninch in width that fits the elastic roller A. The front side of the barB is straight and vertical, and the upper edge is made thin, hard, andsmooth. 0 represents an endless steel band, not unlike in its appearanceto an endless-band saw. It is mounted upon two horizontal wheels, I; b,which are banded upon their edges with vulcanized belting to preventattrition and consequent wearing of the endless band 0. This endlessmetallic band 0 is supported in front of the concave bar B by a seriesof rollers having theiraxes at right angles to the vertical face of theconcave bar B, and the endless band, as shown at c 0,

each having a groove upon its circumference to steady the lower edge ofthe band C. The upper edge of the endless band C is provided with aseries of inclined planes or elongated serrations, having theirdepressions inclining in the direction in which the band rotates, asindicated by the arrows. G represents a guard-plate secured in front ofthe-concave bar B, having its upper edge a little above the edge of theconcave bar, leaving a space between the said concave bar and theguardplate sufficient for the endless band C to run freely. Theguard-plate G is cushioned on the side contiguous to the endless band 0with leather. It is vertically adjustable, and has upon its upper edge,at intervals of two or three inches, projections 1, about half an inchin height, to prevent the cotton-fiber from drifting in the direction ofthe movement of the serrated endless band 0.

Motion is given to the elastic roller A and endless band 0 byanyconvenient gearing, so constructed as to give to the endless band 0 fouror five times the velocity of the surface of the elastic roller A.

An open grating supports the cotton as it enters the machine, and theseeds, as they are severed from the fiber, fall through beneath thefeed-table, and the fiber is swept from the roller by the revolving fanin its rear.

What I claim as my improvement in the cotton-gin is l. The describedserrated endless band C, in combination with the elastic roller A andconcave bar B, substantially as and for the purpose set forth.

2. The endless serrated band 0, constructed as described, in combinationwith the clastic roller A, concave bar B, and guard-.plate G,substantially as and for the purpose set forth.

3. The metallic band 0, having long serrations or incline planes uponits edge, the inclinations falling in the direction of its lIlO- tion,as specified.

4. The grooved elastic roller A, in combination with the serrated bandC, guard-plate G, and projections 01, substantially as specified.

ENOOH OSGOOD. Witnesses:

THOMAS C. GoNNoLLY, A. E. BEECHER.

